期刊
PHYSICAL REVIEW LETTERS
卷 103, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.132001
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资金
- DOE
- NSF (USA)
- CEA
- CNRS/IN2P3 (France)
- FASI
- Rosatom
- RFBR (Russia)
- CNPq
- FAPERJ
- FAPESP
- FUNDUNESP (Brazil)
- DAE
- DST (India)
- Colciencias (Colombia)
- CONACyT (Mexico)
- KRF
- KOSEF (Korea)
- CONICET
- UBACyT (Argentina)
- FOM (The Netherlands)
- STFC
- Royal Society (United Kingdom)
- MSMT
- GACR (Czech Republic)
- CRC Program
- CFI
- NSERC
- West-Grid Project (Canada)
- BMBF
- DFG (Germany)
- SFI (Ireland)
- Swedish Research Council (Sweden)
- CAS
- CNSF (China)
- Alexander von Humboldt Foundation (Germany)
- STFC [PP/E000487/1, ST/F00754X/1, ST/H000992/1, ST/H001166/1, ST/F007418/1, ST/H00095X/1, PP/F000863/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H001166/1, PP/E000487/1, ST/H00095X/1, ST/F007418/1, ST/F00754X/1, ST/H000992/1, PP/F000863/1] Funding Source: researchfish
We present a measurement of the mass difference between t and (t) over bar quarks in lepton + jets final states of t (t) over bar events in 1 fb(-1) of data collected with the D0 detector from Fermilab Tevatron Collider p (p) over bar collisions at root s = 1.96 TeV. The measured mass difference of 3.8 +/- 3.7 GeV is consistent with the equality of t and (t) over bar masses. This is the first direct measurement of a mass difference between a quark and its antiquark partner.
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